EP2074488B1 - Direkt wirkender hydraulik-trip-block mit mehrheitswahlsystem - Google Patents

Direkt wirkender hydraulik-trip-block mit mehrheitswahlsystem Download PDF

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Publication number
EP2074488B1
EP2074488B1 EP20060837608 EP06837608A EP2074488B1 EP 2074488 B1 EP2074488 B1 EP 2074488B1 EP 20060837608 EP20060837608 EP 20060837608 EP 06837608 A EP06837608 A EP 06837608A EP 2074488 B1 EP2074488 B1 EP 2074488B1
Authority
EP
European Patent Office
Prior art keywords
valve
acting hydraulic
direct acting
paths
trip block
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP20060837608
Other languages
English (en)
French (fr)
Other versions
EP2074488A1 (de
Inventor
Samuel Blaser
Heinz Vogler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Elliott Co
Original Assignee
Elliott Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Elliott Co filed Critical Elliott Co
Publication of EP2074488A1 publication Critical patent/EP2074488A1/de
Application granted granted Critical
Publication of EP2074488B1 publication Critical patent/EP2074488B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D21/00—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for
    • F01D21/16—Trip gear
    • F01D21/18—Trip gear involving hydraulic means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D17/00—Regulating or controlling by varying flow
    • F01D17/10—Final actuators
    • F01D17/12—Final actuators arranged in stator parts
    • F01D17/14—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits
    • F01D17/141—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of shiftable members or valves obturating part of the flow path
    • F01D17/145—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of shiftable members or valves obturating part of the flow path by means of valves, e.g. for steam turbines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/43—Programme-control systems fluidic
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8158—With indicator, register, recorder, alarm or inspection means
    • Y10T137/8225—Position or extent of motion indicator
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/877—With flow control means for branched passages
    • Y10T137/87885—Sectional block structure
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/87917—Flow path with serial valves and/or closures

Definitions

  • This invention relates to a direct action hydraulic trip block for steam turbines and other applications.
  • a direct acting hydraulic voting trip block comprising a valve block having three valve cylinders therein, three valve pistons in the valve cylinders, three springs for biasing the valve pistons in non-activated position, and three electric solenoid actuators for, in response to a non-fault signal, moving the piston against the bias of the springs into an activated position.
  • the valve block defines three separate paths between an inlet port and an outlet port. Each path intersects the three valve cylinders.
  • Each valve piston is configured to, in the activated position, block two of the three paths.
  • Each valve piston is configured to close a different two of the three paths.
  • the voting trip block is provided with three valve piston position monitors, one associated with each valve piston.
  • a solenoid one of the solenoid actuators
  • deactivate to put the associated valve piston into a non-activated position
  • the response of the corresponding position monitor observed to determine that the associated solenoid (said one of the solenoid actuators), valve piston, and position monitor are in good running order.
  • each piston extends axially between a solenoid actuator and a bias spring and has two enlarged diameter blocking sections for closing two paths when in the activated position and two smaller diameter unblocking sections adjacent the blocking portion for opening the two paths and a third elongated unblocking section for unblocking the third path in either the activated or non-activated position.
  • a direct acting hydraulic voting trip block comprises a valve block 10 having three valves 12, 14, 16 cylinders therein.
  • Three valve pistons 18, 20, 22 are located in the valve cylinders.
  • Three springs 24, 26, 28 bias the valve pistons in the non-activated position.
  • Three electric solenoid actuators 30, 32, 34 are provided for moving the pistons against the bias of the springs into an activated position.
  • the solenoid actuators move the piston into an activated position when receiving a non-fault condition signal.
  • the valve block defines three separate paths 36, 38, 40 between an inlet port 42 and an outlet port 44. Each path intersects the three valve cylinders.
  • Each valve piston is configured to, in the activated position, block two of the three paths.
  • Each valve piston is configured to close a different two of the three paths. Thus, as long as at least two of the pistons are in the activated position, communication between the inlet and outlet ports is prevented. Normally, the inlet port is in communication with a normally pressurized control port.
  • the voting trip block is provided with three valve piston position monitors 46, 48, 50, one associated with each valve piston.
  • a solenoid one of the solenoid actuators
  • deactivate to put the associated valve piston into a non-activated position
  • the response of the corresponding position monitor observed to determine that the associated solenoid (said one of the solenoid actuators), valve piston, and position monitor are in good running order.
  • each piston 18, 20, 22 extends axially between a solenoid actuator and a bias spring.
  • Each piston has two enlarged diameter blocking sections 52, 54 for closing two paths when in the activated position and two smaller diameter unblocking sections 56, 58 adjacent the blocking portion for opening the two paths and a third elongated unblocking section 60 for unblocking the third path in either the activated or non-activated position.
  • the three valve cylinders have parallel and spaced axes.
  • the three paths between the inlet and outlet ports have portions intersecting the valve cylinders which have parallel and spaced axes.
  • the axes of the valve cylinders and the paths between the inlet and outlet ports are perpendicular.
  • the bias springs and solenoids are at the opposite axial end of the valve cylinders. The solenoids are aligned on one face of the valve block.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Magnetically Actuated Valves (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Multiple-Way Valves (AREA)
  • Indication Of The Valve Opening Or Closing Status (AREA)
  • Fluid-Driven Valves (AREA)
  • Control Of Fluid Gearings (AREA)
  • Hardware Redundancy (AREA)
  • Control Of Turbines (AREA)
  • Valve Housings (AREA)

Claims (10)

  1. Direkt wirkender hydraulischer Auswahlauslöseblock, umfassend:
    drei Ventilzylinder (12, 14, 16),
    drei Ventilkolben (18, 20, 22) in den Ventilzylindern,
    drei Federn (24, 26, 28) zum Vorspannen der Ventilkolben in eine unaktivierte Position,
    drei elektrische Magnetstellantriebe (30, 32, 34) zum Bewegen der entsprechenden Ventilkolben (18, 20, 22) entgegen der Vorspannung der Federn in eine aktivierte Position nach Maßgabe einzelner Fehlerfreiheitssignale,
    drei getrennte Wege (36, 38, 40), die zwischen einer Einlaßöffnung (42) und einer Auslaßöffnung (44) gebildet sind,
    wobei jeder Ventilkolben (18, 20, 22) eine Konfiguration aufweist, um in der aktivierten Position zwei der drei Wege (36, 38, 40) zu blockieren, und jeder Ventilkolben (18, 20, 22) eine spezielle Konfiguration aufweist, um zwei andere der drei Wege (36, 38, 40) zu blockieren,
    wodurch die Verbindung zwischen der Einlaßöffnung (42) und der Auslaßöffnung (44) verhindert ist, solange sich mindestens zwei von den Kolben in der aktivierten Position befinden,
    dadurch gekennzeichnet, daß die Ventilzylinder (12, 14, 16), die Ventilkolben (18, 20, 22) und die Federn (24, 26, 28) in einem Ventilblock (10) enthalten sind,
    daß die Wege (36, 38, 40) interne Wege des Ventilblocks (10) sind,
    und jeder Weg (36, 38, 40) die drei Ventilzylinder (12, 14, 16) kreuzt.
  2. Direkt wirkender hydraulischer Auswahlauslöseblock nach Anspruch 1, umfassend drei Positionsüberwacher für die Ventilkolben, wobei jedem Ventilkolben (18, 20, 22) einer zugeordnet ist, wodurch einem der Magnetstellantriebe (30, 32, 34) die Entaktivierung des zugeordneten Ventilkolbens ohne Zulassen einer Verbindung zwischen der Einlaßöffnung (42) und der Auslaßöffnung (44) befohlen werden und das Reaktionsvermögen des entsprechenden Positionsüberwachers ermittelt werden kann, um festzustellen, daß der zugeordnete Magnetstellantrieb, der Ventilkolben und der Positionsüberwacher in gutem Zustand laufen.
  3. Direkt wirkender hydraulischer Auswahlauslöseblock nach Anspruch 1 oder 2, wobei die drei Ventilzylinder (12, 14, 16) parallele und beabstandete Achsen aufweisen.
  4. Direkt wirkender hydraulischer Auswahlauslöseblock nach einem der Ansprüche 1 bis 3, wobei die drei Wege (36, 38, 40) zwischen der Einlaßöffnung (42) und der Auslaßöffnung (44) Abschnitte aufweisen, die die parallele und beabstandete Achsen aufweisenden Ventilzylinder (12, 14, 16) kreuzen.
  5. Direkt wirkender hydraulischer Auswahlauslöseblock nach Anspruch 4, wobei die Achsen der Ventilzylinder (12, 14, 16) und die Wege (36, 38, 40) zwischen der Einlaßöffnung (42) und der Auslaßöffnung (44) senkrecht verlaufen.
  6. Direkt wirkender hydraulischer Auswahlauslöseblock nach einem der Ansprüche 1 bis 5, wobei sich die Vorspannfedern (24, 26, 28) und die Magnetstellantriebe an den einander entgegengesetzten axialen Enden der Ventilzylinder (12, 14, 16) befinden.
  7. Direkt wirkender hydraulischer Auswahlauslöseblock nach einem der Ansprüche 1 bis 6, wobei die Magnetstellantriebe (30, 32, 34) auf einer Fläche des Ventilblocks (10) ausgerichtet sind.
  8. Direkt wirkender hydraulischer Auswahlauslöseblock nach einem der Ansprüche 1 bis 7, wobei die Einlaßöffnung (42) mit einer normalerweise unter Druck stehenden Steueröffnung in Verbindung steht.
  9. Direkt wirkender hydraulischer Auswahlauslöseblock nach einem der Ansprüche 1 bis 8, wobei sich jeder Kolben (18, 20, 22) in Axialrichtung zwischen einem Magnetstellantrieb (30, 32, 34) und einer Vorspannfeder (24, 26, 28) erstreckt und in der aktivierten Position zwei Blockierungsabschnitte vergrößerten Durchmessers (52, 54) zum Verschließen zweier Wege und zwei Freigabeabschnitte kleineren Durchmessers (56, 58) angrenzend an den Blockierungsabschnitt zum Öffnen der zwei Wege sowie einen dritten, langgestreckten Freigabeabschnitt zum Freigeben des dritten Weges entweder in der aktivierten oder der unaktivierten Position besitzt.
  10. Direkt wirkender hydraulischer Auswahlauslöseblock nach einem der Ansprüche 1 bis 9 mit mindestens einer zusätzlichen Gruppe von drei Ventilzylindern und den zugeordneten Kolben, Magnetstellantrieben und Vorspannfedern mit der gleichen Konfiguration wie bei der ersten Gruppe von Ventilzylindern.
EP20060837608 2006-10-16 2006-11-14 Direkt wirkender hydraulik-trip-block mit mehrheitswahlsystem Not-in-force EP2074488B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/581,799 US7409965B2 (en) 2006-10-16 2006-10-16 Direct acting hydraulic trip block
PCT/US2006/044255 WO2008048290A1 (en) 2006-10-16 2006-11-14 Direct acting hydraulic trip block with majority voting

Publications (2)

Publication Number Publication Date
EP2074488A1 EP2074488A1 (de) 2009-07-01
EP2074488B1 true EP2074488B1 (de) 2010-11-10

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ID=38054890

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20060837608 Not-in-force EP2074488B1 (de) 2006-10-16 2006-11-14 Direkt wirkender hydraulik-trip-block mit mehrheitswahlsystem

Country Status (17)

Country Link
US (1) US7409965B2 (de)
EP (1) EP2074488B1 (de)
JP (1) JP4876171B2 (de)
KR (1) KR20090078785A (de)
CN (1) CN101600999B (de)
AT (1) ATE487969T1 (de)
AU (1) AU2006350114B8 (de)
BR (1) BRPI0621933A2 (de)
CA (1) CA2662456A1 (de)
DE (1) DE602006018207D1 (de)
EA (1) EA014134B1 (de)
GE (1) GEP20115307B (de)
IL (1) IL197847A0 (de)
MX (1) MX2009003457A (de)
UA (1) UA97651C2 (de)
WO (1) WO2008048290A1 (de)
ZA (1) ZA200901589B (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013003976A1 (de) 2013-01-31 2014-07-31 Voith Patent Gmbh Vorrichtung zum Betätigen eines Schnellschlussventils
DE102014007475A1 (de) 2014-05-21 2015-11-26 Stephan Amelunxen Ventilanordnung zur gesteuerten Druckentlastung fluidgefüllter Leitungen unter erhöhten Sicherheitsanforderungen

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US8794268B2 (en) * 2010-11-05 2014-08-05 Dresser-Rand Company Voting hydraulic dump system
DE102011082599B4 (de) * 2011-09-13 2013-08-14 Keicher Hydraulik GmbH Ventilanordnung, Verwendung, Turbine und Kraftwerk
US9896962B2 (en) 2014-02-28 2018-02-20 General Electric Company Trip manifold assembly for turbine systems
CN106414907B (zh) * 2014-06-03 2019-03-26 福伊特专利有限公司 用于蒸汽涡轮机的速关阀的液压控制装置和蒸汽涡轮设备
US10119478B2 (en) * 2015-06-25 2018-11-06 Woodward, Inc. High reliability high flow redundant trip block
JP2019019853A (ja) * 2017-07-13 2019-02-07 ジヤトコ株式会社 油路選択装置
GB201901548D0 (en) * 2019-02-05 2019-03-27 Rolls Royce Plc Valve arrangement for a fuel system

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013003976A1 (de) 2013-01-31 2014-07-31 Voith Patent Gmbh Vorrichtung zum Betätigen eines Schnellschlussventils
DE102013003976B4 (de) * 2013-01-31 2015-10-15 Voith Patent Gmbh Vorrichtung zum Betätigen eines Schnellschlussventils
DE102014007475A1 (de) 2014-05-21 2015-11-26 Stephan Amelunxen Ventilanordnung zur gesteuerten Druckentlastung fluidgefüllter Leitungen unter erhöhten Sicherheitsanforderungen
DE102014007475B4 (de) * 2014-05-21 2017-06-08 Stephan Amelunxen Ventilanordnung zur gesteuerten Druckentlastung fluidgefüllter Leitungen unter erhöhten Sicherheitsanforderungen

Also Published As

Publication number Publication date
BRPI0621933A2 (pt) 2012-09-11
EA014134B1 (ru) 2010-10-29
JP4876171B2 (ja) 2012-02-15
CN101600999B (zh) 2012-07-04
MX2009003457A (es) 2009-04-14
GEP20115307B (en) 2011-10-25
AU2006350114B2 (en) 2011-01-06
ATE487969T1 (de) 2010-11-15
AU2006350114B8 (en) 2011-06-09
JP2010507046A (ja) 2010-03-04
EP2074488A1 (de) 2009-07-01
ZA200901589B (en) 2010-06-30
US7409965B2 (en) 2008-08-12
IL197847A0 (en) 2009-12-24
CA2662456A1 (en) 2008-04-24
AU2006350114A1 (en) 2008-04-24
EA200970385A1 (ru) 2009-08-28
CN101600999A (zh) 2009-12-09
AU2006350114A8 (en) 2011-06-09
DE602006018207D1 (de) 2010-12-23
WO2008048290A1 (en) 2008-04-24
KR20090078785A (ko) 2009-07-20
UA97651C2 (ru) 2012-03-12
US20080087339A1 (en) 2008-04-17

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